Plants use a special kind of clock that counts the days and nights. When it gets longer days, they know it's time to bloom! It’s like a plant has a tiny timer inside it that tells it when to wake up and grow flowers.
How the Timer Works
Inside every plant is a kind of magic sensor that detects how long the day lasts. If the day gets longer, the magic sensor sends a message to the plant's flower parts, telling them to start growing.
Examples
- A tulip knows it's spring because the days get longer and the nights get shorter.
- Dandelions bloom in the morning and close at night like tiny sunflowers.
- A flower in a greenhouse might start blooming earlier if someone changes the light hours.
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See also
- How Does a Plant Know When to Flower?
- How Do Plants Know When to Grow or Rest?
- How Do Plants Know When to Bloom in the Spring?
- How Do Animals Migrate Across the World?
- How Do Bees Know How to Make Honey?
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